Improvement in carbonic-acid-gas generators



Q 0. ZW I E Garb-onicAcid G 2 Sheets--Sheet 1. U 8 CH.

s Generators.

Patented Dec. 23,1873.

llwentar W Wtqzgsses, 62

2 Sheets--Sheet 2.

, D. ZWIETUSCH. GarbonicAcid Gas Generators.

P atented Dec. 23,1873.

I Inventor V j/Qtn esses, u

UNITED STATES P w -QR E OTTO ZlVIETUSOH, OF MHAVAUKEE, \VISCONSIN.

IMPROVEMENT IN CARBONlC-AClD-GAS GENERATORS.

Specification forming part of Letters Patent No. 145,774, dated December23, 1873; application filed August 19, 1873.

To all whom it may concern:

Be it known that I, OTTO Zwin'rnscn, of Milwaukee, in the county ofMilwaukee, in the State of lVisconsin, have invented certainImprovements in Oarbonic-Acid-Gas Generators, of which the following isa specification:

My invention has for its object the manufacture of carbonic-acid gas,and supplying it to suitable articles, such as kegs or barrels filledwith beer or other liquids, and kept on tap to supply the place of theliquid drawn, and to keep the balance in the receptacle perfectly pureand free from adulteration by the contact of air, and the machine isarranged so as to be self-acting, and operate without any trouble orlooking after when once charged and put in operation.

Figure 1, Sheet 1, is a perspective view of my invention, and Fig. 2,Sheet 2, a vertical sectional view.

A is the frame of the machine; B, a jar, made of suitable material, inwhich the carbonic-acid gas is manufactured; 0, piston and piston-pipe,made hollow, (the lower part of the pipe is made a little the largest,)through which marble is conveyed to the basket or holder, which isattached to its bottom; D, a washer, in which the is washed; E, coverfor the piston-pipe opening; a, inlet to the jar, through which the acidis introduced; 1), outlet, by which thejar is emptied; c 0, space in thejar for the gas when generated above the acid; (1 (1, cover of jar B; ce, brace across the frame A, inclosing the top of jar B; f, basket orholder for marble, hung to the bottom of piston G; g, a stop or latch tohold the piston up, and keep the marble out of the acid; h, clamp to thecover E on the top of the piston; t i, bolts, which fasten the basket fand packing to the piston; j, hinge to cover E; 70, opening in the coverE, to let the gas pass from the hollow piston G to the washer D throughpipe 1,- m, safety-valve on the top of washer D; n, outlet-pipe toconvey the gas to the vessel when wanted; 0 0, piston-packing, made ofone or more pieces fastened to the piston C at the inner edge, and theouter edge turned down into the jar, so that, as the gas presses upward,it forces the packing against the neck of the jar and makes aself-acting packing, a tight joint; 1),

inlet into washer l), to fill in water; q, outlet to washer throughwhich to draw off the water; 1', cross-bar forming a fulcrum for leverss s z. t, weights on the ends of levers s s, with which to regulate thepressure of the gas; a a, crossbar attached to the head of piston G; co, forked connections, which connect levers s s to cross-bar u a; z z,packin The operation of this machine is as follows: Raise the piston Gand stand up the stop 9 under the bar a a fill in the acid into jar Bthrough inlet a upto the letters 0 0. Then open cover E by sliding clamp71 off the bar connected with the cover, and fill up the basket andpiston with pieces of marble, and then close the cover again. Then fillthe washer D with water or any suitable chemical solution, and close allthe cooks; remove the stop g from its upright position, and the basketwhich holds the marble will settle down into the acid, and the action ofthe acid on the marble will generate gas, which will pass through pistonG and through the small opening is into the washer D, where it will bepurified and escape through outlet n to wherever it is wanted. Thepressure is regulated by the weights t t on the levers s s, which pressthe piston and basket down so that the basket enters the acid, and asthe gas is generated it accumulates force, and, pressing against thepacking 0 0, raises the basket out of the acid, and as the gas is usedout the pressure becomes less, and the basket is pressed down by theweights, and thus it works without interrup: tion as long as there isany strength in marble and acid, self-actin I claim as my invention-- 1.Generator B, in combination with basket f, piston c, packing 0 0,packing z 2, cover E, clevis h, cross-bar u and levers s s, weights t t,and connections 12 o, substantially as described.

2. Gross-bar 0, cover (Z, and generator B, all in combination with latchg, substantially as described.

3. The combination of safety valve on, washer D, and generator B,substantially as Set forth.

OTTO Z WIETUSCH. itnesses:

JOHN G. Hmscn,

J. B. SMITH,

